I'd say that being the God of Time and Space in The Future Diary is a pretty sweet gig for Deus ex Machina.
In Toaru Majutsu no Index/Toaru Kagaku no Railgun, Kuroko Shirai is a member of Judgment, which basically gives her the authority to use her teleportation powers to save people, sometimes by teleporting them to safety, and sometimes by being a teenage vigilante. Sounds pretty cool to me!
For people who are really good at their occupations, there's that Rental Shop guy in Nerima Daikon Brothers, who will lend you absolutely anything (except money) if you sing him a song.
There's also Hayate the Combat Butler, who somehow always manages to overcome terrible, terrible luck to do his duty to Nagi. A lesser butler would either be dead or driven to insanity by the sort of things he has to go through.